Naked and Afraid Episode Rating Graph

Two foreigners try to become the first survivalists to endure 21 days on U.S soil. But rattlesnakes, unfamiliar terrain and plummeting temperatures threaten to send them back across the pond. Lilly from Austria and Sam from the UK team up to do battle with the New Mexico wilderness.

All-Star survivalists Jake Nodar and Melissa Miller take on the punishing Blackwater Swamp in Florida, which teems with poisonous snakes and aggressive alligators. When one of the survivalists becomes disorientated, local authorities are called in to conduct an all-out search.

Dropped into a high-altitude jungle in Colombia, Tommy and Leah face territorial Pumas and venomous fer-de-lance snakes, but the biggest threat is the extreme temperature changes, where highs hit nearly 100 degrees and lows plummet into the 40s.

Dropped onto a frozen Alaskan Glacier, All-Star survivalists Laura Zerra and Steven Hall scramble to stave off frostbite and hypothermia. And 7,000 miles south, two new survivalists take on a sun-scorched Brazil island, with anaconda and deadly stingray.

Elite survivalists Matt Wright and Gary Golding are tested by deadly spitting cobras and territorial elephants in an African killing zone. But Matt and Gary aren't alone each must protect a novice survivalist from the threats surrounding them.

Survivalists expect to struggle against the natural threats for 21 days but when they also face supernatural phenomena – haunted locations, ancient curses and evil spirits – their resolve is tested both physically and mentally.

In sun-scorched Brazil, survivalists Wes and Jesse try to complete their 21-day challenge, but a jaguar crossing into their camp puts them on high alert. Starvation forces Jesse to attack a beehive in search of honey and the entire colony retaliates.

Hakim Isler and Phaedra Brothers tackle the high altitude and extreme cold of the Himalayan foothills in northern India. Phaedra battles food poisoning from before her arrival and suffers through bladder and kidney infections.

A survival-savvy yoga teacher and a custom knife maker tackle the brutal jungle of Colombia. Their primitive survival skills are impressive, but the deadly spiders and tics test both their courage and resilience, threatening to take them down.

On a sun-scorched Brazilian island, aggressive anaconda and deadly stingray torment survivalists Whitney and Nathan, pushing both of them to their breaking point. Working together they use their hunting and fishing skills to try and make it 21 days.

The first couple to ever take on the 21-day challenge tests themselves and their relationship as they take on the Guyana jungle. They must work together to battle jaguars, anacondas, caiman, and more than two-million species of insects.

A special ops veteran teams up with a single mom to fight torrential rains, flash floods and sickness in Thailand's Sai Rung River Valley. The pair puts their skills to the test before the river leaves them stranded from the crew.

Two strangers are dropped in one of the most dangerous African locations in the dead heat of Summer. Faced with aggressive hippos and charging elephants they quickly learn their place, but must mark their territory if they want to make it 21 Days.

All-stars Fernando and Dani land in a rainforest in Ecuador for their third challenge, where jaguars, caiman, anacondas and bullet ants are on the prowl; their divergent approaches to primitive survival might do them in.

A married couple goes from watching the challenge from their couch in Idaho to taking it on in the perilous Philippine jungle. Torrential rain, relentless bugs and deadly boars put their survival skills -- and their marriage to the ultimate test.

Dropped into Guyana's scorching savannah, two Naked and Afraid superfans fight the oppressive heat and constant insect attacks. Scorching temperatures lead to severe dehydration and force a desperate fan to risk illness by drinking unsanitary fluids.

When a third survivalist crashes the challenge, tension and jealousy are just as threatening as the piranha and jaguars of the Ecuadorian rainforest. Claims that there's more going on than just survival puts everyone's challenge at risk.

Terribly poisoned without food or water, in the arid and desolate, savannah region of Brazil, survivalists Gary and Karra will be tested unlike any other survivalists before them. Depleted and broken will either of them make it to Day 21?

A marine biologist and a special forces veteran risk hypothermia at every turn as they take on Ontario, Canada, with no clothes. Bitter cold, torrential rain and wandering bears and moose make every night a struggle.

In a lethal African hunting ground, a biker chick and a taxidermist have to stay on the move to survive. The pair must push across 21 miles of savannah to find food and water while avoiding a pride of lions that's tracking them every step of the way.

Being naked in the jungle with a complete stranger can lead to funny moments, and laughter can be a critical skill when trying to survive through blood, sweat, tears, snake bites, burns, and rashes in hard to reach places.

A powerful earthquake in the Philippine jungle rattles a thrill-seeking chef and a competitive hockey mom, but the territorial monkeys, rainstorms, lack of food, and dehydration lead to a disastrous face-first fall.

A professional backpacker and an experienced hunter attempt to survive 21 days without their high-end gear in a swampy Argentine savanna teeming with mosquitoes, aggressive bees and violent subtropical storms. Argentina provides the backdrop for survivalists Malorie and Patrick as they contend with an unforgiving jungle.

Avoiding the dangers of a rushing river, two survivalists brave a vast cave system in the Colombian rainforest; trying to survive 21 days, the jungle tests them with threats including venomous fer-de-lance snakes, piranhas and biting insects.

Two survivalists team up to tackle the swampy shore of Croatia. A strong partnership is forged through braving the elements and facing their demons, but everything takes a turn for the worst after a freak accident.

In the mountainous rainforest of Honduras, a survivalist with an unusual past is paired with a hard-headed police detective to try and survive 21 days, but predatory jaguars, swarms of fire ants and a debilitating injury threaten their challenge.

Former Marine Tim, and Shannon, a stonemason take on armies of stinging red ants and bubbling mud volcanoes on the Caribbean island of Trinidad. Even with this daunting location working against them, their biggest struggle is actually each other.

Four male survivalists who tapped in previous challenges seek redemption in South Africa. Humbled by their past failures, can they make it to 21 days and triumph as a tribe? Limpopo, South Africa threatens to keep four returning survivalists from the redemption they desperately seek.

In a unique four-person challenge, a lion attack survivor returns to Africa to face her fears. Surrounded by lions, crocodiles and cape buffalo, the tribe of four struggles against constant threats and each other as they try to survive in a kill zone

Fan survivalist Matt, notorious for his former partner sharting in their water source, teams up with environmentalist, Kerra, to take on 21-days in Zambia. Dropped in a valley teaming with leopards, will he have another environmental disaster?

A mom and an adventure addict drop into the cloud forest of Ecuador; unbearably wet conditions, violent lightning, cabin fever, trench foot and finger-slicing machetes threaten to keep the pair from completing their 21-day challenge.

For the first time, two young adult kids of veteran survivalists try to prove they are as good as their parents when they take on 21-days in a dense Mexican rainforest where they face pumas, jaguars, and deadly fer de lance snakes.

A football coach and midwife attempt to overcome the curse of Chiapas, Mexico, a location so daunting that no survivalist has completed 21 days. But their radically different approaches to survival hurt their ability to endure.

An Army vet and a newly married man grapple with gender norms as they take on the mountains of Croatia; extreme hunger and frigid temperatures force this unlikely pair to bond together, but a vicious storm threatens to rip them apart.

A mother of four and a country boy are dropped into the jaguar filled jungle of Belize. While they hunt for food, something is hunting them, and the mental part of the challenge gets to them both. Can they survive the jungle and themselves?

Florida's brutal black water swamp pushes a hard-headed homesteader and an elite military Alpha male to their limits. Threatened by venomous snakes, dangerous wild boar and torrential rains, the clashing survivalist must work together or fail alone.

An extreme athlete and a book smart bartender tackle an Ecuadorian cloud forest where it rains daily. Will their inability to know their own limits eventually get the best of them or will Mother Nature strike the final blow in this Naked and Afraid first?

In a haunted Mayan jungle, a painful injury tests the resolve of survivalists Leah and Caesar. Surviving is a struggle as they are faced with suffocating humidity, hungry predators, torrential rainfall, unrelenting insects and intoxicating fruit.

An adventure guide and a veteran take on Australia's Outback and face brutal terrain, freezing temperatures and lack of sleep. However, their greatest danger may be each other when cultural differences cause tempers to flare.

A resilient mom from Washington and a quirky spider-lover tackle the remote Seminole Forest of Florida. Terrorized by huge gators and 550-pound black bears, they are driven to their physical and emotional breaking points.

In the frigid mountains of Bulgaria, wolves circle a successful fan survivalist trying to conquer the 21-day challenge. Large fires are their defense against predators and hypothermia until the flames fan out of control and become the biggest threat.

Deep in Mexico's Baja desert lies the scorching wasteland of the Devil's Canyon. A Canadian mountain man teams up with an experienced homesteader to take on the canyon's triple-digit heat, scarce water, and venomous predators

A surfer from Hawaii and an ex-military take on the Texas countryside, surrounded by armadillo, bighorn sheep and vicious wild boar; as they battle starvation and face a potentially fatal flood, their skills get fully put to the test.

On the edge of the Bermuda Triangle, an Army veteran dive master and a Cajun boat captain take on relentless thunderstorms and battle dehydration as they try navigate more than 20 miles of open ocean in the ultimate test of sink or swim.